Поршень FAW J6P & Соединяющий шатун: Деконструкция 11 Важные детали для безупречной мощности

Добро пожаловать на эту экспертную деконструкцию Поршень FAW J6P and Connecting Rod assembly. This is the heart of the engine for the FAW Jiefang CA3250P66K2L1T1E 6×4 самосвал.

This is not a simple set of parts; это “Логическая сборка” engineered to perform the single most critical task in the engine: converting the violent, high-pressure explosion of diesel combustion into smooth, rotational power.

The “логика” of this assembly is a perfect partnership. The Поршень FAW J6P (Комп 10) это “shield,” enduring the heat and force. Связующий шаг (Комп 5) это “рука,” transferring that force to the crankshaft.

The “Combustion Logic” этого Поршень FAW J6P (P/N 1004011-630-0000F) is its most advanced feature. It is not a flat-top piston; it features a complex “чаша” дизайн. This bowl is a precision-engineered combustion chamber, designed to create a “swirl” и “tumble” in the compressed air. When fuel is injected, this swirl logic ensures a perfect, instantaneous air-fuel mixture, leading to a more complete, more powerful, and cleaner combustion. This design is what gives the Поршень FAW J6P its reputation for efficiency and power.

Данное техническое руководство является важным ресурсом для специалистов по ремонту двигателей., техники механического цеха, и менеджеры по запчастям. We will deconstruct the entire 11-component group into its four primary “логика” система: а “Логика уплотнения” (the piston rings), а “Вращаться & Transfer Logic” (the rod, приколоть, and retainers), критический “Hydrodynamic Bearing Logic” (the rod bearings), и “Критическая логика крепежа” (the high-tensile rod bolts). Это полное руководство по Поршень FAW J6P and rod assembly.

Основной 1: The “Горение & Уплотнение” Логика (Компоненты 1, 2, 3, 10)

Эта группа образует “лицо” of combustion. Its logic is to harness the explosion while creating a near-perfect gas and oil seal.

1. Компонент: 'Поршень’ (1004011-630-0000Ф)
Это основной компонент (Комп 10). The Поршень FAW J6P is made from a high-strength, low-expansion aluminum alloy. Его “Тепловая логика” is an internal, cast-in “cooling gallery.” Engine oil is sprayed up from the block, fills this gallery, and carries heat away from the piston crown, preventing it from melting under the load of a heavy-duty diesel.

2. The “Ring Pack” Логика (Компоненты 1, 2, 3)
The “Логика уплотнения” принадлежащий Поршень FAW J6P is handled by its three-part “ring pack.”

• ‘First compression ring’ (1004012-36Д): Это “firewall.” Its logic is to contain the 2000+ PSI of combustion pressure. It is often “Keystone” (wedge) shaped to prevent it from sticking in the groove.
• ‘Second compression ring’ (1004013-36Д): Это “secondary seal” или “scraper.” Its logic is to catch any pressure that leaks past the first ring and to begin scraping excess oil *down* the cylinder wall.
• ‘Oil ring assy’ (1004030-36Д): Это “Логика управления маслом.” Это комплекс, multi-piece ring (Комп 3). Its logic is to scrape the vast majority of oil off the cylinder wall on the downstroke, leaving only a microscopic film for lubrication. Failure of this ring is the primary cause of blue smoke (oil burning) and high oil consumption. This ring pack is critical to the function of the Поршень FAW J6P.

Основной 2: The “Вращаться & Transfer” Логика (Компоненты 4, 5, 9, 11)

Эта группа образует “рука” that connects the Поршень FAW J6P to the crankshaft. Its logic is about transferring immense force while allowing for precise movement.

1. Компонент: ‘Fracture-split connecting rod body’ (1004021-36Д)
Этот (Комп 5) is a masterpiece of modern engineering. Его “Fracture-Split Logic” имеет решающее значение. To install the rod on the crankshaft, а “big end” must be a two-part cap. Instead of “распиловка” the cap, manufacturers *snap* it apart with a high-powered laser or hydraulic press. Этот “перелом” creates a perfectly irregular, 100% unique, matched surface. Этот “логика” means the cap can *never* shift side-to-side, which is a common failure point in older, “machined-cap” rod designs.

2. The “Вращаться” Логика (Компоненты 4, 9, 11)
This sub-assembly connects the Поршень FAW J6P to the rod (Комп 5).

• ‘Piston pin’ (1004018-630-0000Z.): Этот (Комп 11) is the hardened steel “wrist pin” that forms the pivot.
• ‘Connecting rod small end bush’ (1004024-630-0000): Этот (Комп 4) это “Sacrificial Pivot Logic.” This bronze sleeve is pressed into the “small end” of the connecting rod. The piston pin floats inside it. This bush is the “wear item,” saving the expensive connecting rod from damage.
• ‘Retaining ring 45’ (GB893.1-1986 45): Это “Containment Logic.” Список требует 12 (Комп 9), или 2 per Поршень FAW J6P. Эти “circlips” snap into grooves inside the piston itself, preventing the ‘Piston pin’ from sliding sideways and gouging the cylinder wall.

Основной 3: The “Hydrodynamic Bearing” Логика (Компоненты 6, 7)

Эта группа “логика” is to allow the connecting rod to spin at thousands of RPM on the crankshaft *without ever touching it*. Это “Hydrodynamic Logic” central to all modern engines.

Компоненты: ‘Connecting rod upper bearing’ (1004026-36Д) & ‘Lower bearing’ (1004028-36Д)
The connecting rod “big end” floats on a microscopic film of high-pressure oil. These ‘bearings’ (Комп 6 & 7) are the precision, многослойный, soft-metal shells that are engineered to hold this oil film. Их “Sacrificial Logic” means they are the “wear item.” If any debris (carbon, металл) gets in the oil, it will embed in the soft bearing, saving the hardened, expensive crankshaft from scratches.

The “Load Logic” также является ключевым. The ‘Upper bearing’ (Комп 6), which sits in the main rod body, takes the full, massive, downward force of the Поршень FAW J6P‘s combustion stroke. The ‘Lower bearing’ (Комп 7), in the cap, takes the high-RPM “whipping” force on the other strokes. They are engineered differently to handle these specific, opposing loads.

Основной 4: The “Critical Fastener” Логика (Компонент 8)

This final component is arguably the single most stressed fastener in the entire engine. Его “логика” is to provide a massive, unyielding clamping force.

1. Компонент: ‘Connecting rod bolt’ (1004023A29D)
Список требует 12 болты (Комп 8), two for each of the six connecting rods. Это “Логика зажимной силы.” They must handle two forces: а “толкать” from the combustion stroke (which tries to crush the bearings) и “тянуть” from the high-RPM exhaust stroke (which tries to rip the cap off).

Это “Отношение крутящего момента к текучести” (телетайп) болты. Их “логика” is that they are designed to be torqued to a specific point where they *permanently stretch*. This stretching action turns the bolt into a high-tension spring, providing a perfectly consistent clamping force that the “fracture-split” cap (Комп 5) requires to stay locked in place. This is why they are *single-use*. Once stretched, they are compromised and MUST be replaced any time the Поршень FAW J6P or rod assembly is serviced.

Поршень FAW J6P & Connecting Rod Parts List & Технические характеристики

В следующей таблице представлена ​​полная, подробная разбивка всех 11 типы компонентов, указанные в этом Поршень FAW J6P and Connecting Rod assembly for the FAW Jiefang CA3250P66K2L1T1E 6×4 самосвал.

Основные характеристики

Технические характеристики Поршень FAW J6P and Rod Assembly are defined by its function as the core of the engine’s rotating assembly.